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The homologous identification of the stem rust resistance genes Rpg5, Adf3 and RGA1 in the relatives of barley
The barley genes Rpg5 , RGA1 and Adf3 , which provide a strong resistance to many pathotypes of stem rust, were cloned a few years ago, but it was still unclear whether their homologues were represented in wheat and in related species. The paper describes the results of a bioinformatic research to d...
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Published in: | Cytology and genetics 2016-03, Vol.50 (2), p.96-105 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The barley genes
Rpg5
,
RGA1
and
Adf3
, which provide a strong resistance to many pathotypes of stem rust, were cloned a few years ago, but it was still unclear whether their homologues were represented in wheat and in related species. The paper describes the results of a bioinformatic research to determine the homologues of
Rpg5
,
RGA1
and
Adf3
in the genomes of
Triticum aestivum
and several wild grasses, which breeders usually use as sources of stem rust resistance, and which are available in the genome databases. It was found that the
Th. elongatum
sequence Q9FEC6 and
T. aestivum
sequence Q43655 were the highly identical homologues of the
Adf3
sequence.
T. urartu
M8A999 sequence and
T. aestivum
W5FCU1 sequence were found to be the closest homologues of
Rpg5
complete protein sequence, but the identity of their kinase domains was not as clear as that of the other domains. The separate Rpg5 kinase part analysis did not provide the strong evidences that its orthologs were present in our corn species.
T. urartu
M7ZZX9 sequence and
T. aestivum
W5FFP0 and W5FI33 sequences were shown to be the homologues of
RGA1
. The analysis of the predicted active sites allowed finding out the difference between sequences of
Rpg5
,
RGA1
,
Adf3
protein and their homologues. |
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ISSN: | 0095-4527 1934-9440 |
DOI: | 10.3103/S0095452716020055 |